bbatsov/rubocop

### New features

* [#7735](https://github.com/rubocop/rubocop/issues/7735): `NodePattern` and `AST` classes have been moved to the [`rubocop-ast` gem](https://github.com/rubocop/rubocop-ast). ([@marcandre][])
* [#7950](https://github.com/rubocop/rubocop/pull/7950): Add new `Lint/DeprecatedOpenSSLConstant` cop. ([@bdewater][])
* [#7976](https://github.com/rubocop/rubocop/issues/7976): Add `AllowAliasSyntax` and `AllowedMethods` options for `Layout/EmptyLinesAroundAttributeAccessor`. ([@koic][])
* [#7984](https://github.com/rubocop/rubocop/pull/7984): New `rake` task "check_commit" will run `rspec` and `rubocop` on files touched by the last commit. ([@marcandre][])

### Bug fixes

* [#7953](https://github.com/rubocop/rubocop/issues/7953): Fix an error for `Lint/AmbiguousOperator` when a method with no arguments is used in advance. ([@koic][])
* [#7962](https://github.com/rubocop/rubocop/issues/7962): Fix a false positive for `Lint/ParenthesesAsGroupedExpression` when heredoc has a space between the same string as the method name and `(`. ([@koic][])
* [#7967](https://github.com/rubocop/rubocop/pull/7967): `Style/SlicingWithRange` cop now supports any expression as its first index. ([@zverok][])
* [#7972](https://github.com/rubocop/rubocop/issues/7972): Fix an incorrect autocorrect for `Style/HashSyntax` when using a return value uses `return`. ([@koic][])
* [#7886](https://github.com/rubocop/rubocop/issues/7886): Fix a bug in `AllowComments` logic in `Lint/SuppressedException`. ([@jonas054][])
* [#7991](https://github.com/rubocop/rubocop/issues/7991): Fix an error for `Layout/EmptyLinesAroundAttributeAccessor` when attribute method is method chained. ([@koic][])
* [#7993](https://github.com/rubocop/rubocop/issues/7993): Fix a false positive for `Migration/DepartmentName` when a disable comment contains an unexpected character for department name. ([@koic][])

### Changes

* [#7952](https://github.com/rubocop/rubocop/pull/7952): **(Breaking)** Change the max line length of `Layout/LineLength` to 120 by default. ([@koic][])
* [#7959](https://github.com/rubocop/rubocop/pull/7959): Change enforced style to conditionals for `Style/AndOr`. ([@koic][])
* [#7985](https://github.com/rubocop/rubocop/pull/7985): Add `EnforcedStyle` for `Style/DoubleNegation` cop and allow double negation in contexts that use boolean as a return value. ([@koic][])

[@marcandre]: https://github.com/marcandre
[@bdewater]: https://github.com/bdewater
[@koic]: https://github.com/koic
[@zverok]: https://github.com/zverok
[@jonas054]: https://github.com/jonas054